<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>见缝插针</title>
	<script src="js/start.js"></script>
	<style>
	html,body{margin: 0;padding:0;}
	</style>
</head>
<body>
	<canvas id="canvas" width="900" height="800"></canvas>
</body>
</html>